It sounds like you're asking for a review or comparison of (likely a kids' rhyme or animated video channel) for an "A to Z video song" — probably an alphabet song video.
: For a superior experience, look for content encoded at 320 kbps MP3 or HD video formats to ensure clear playback on mobile devices. mobi masti a to z video song better
Since "Mobi Masti" is often associated with mobile-based entertainment, ringtones, and classic Bollywood/Pop compilations, this review is written from the perspective of a user looking for (visuals, audio, and content) in an "A to Z" video song collection. It sounds like you're asking for a review